替换与拆分文本

let s = "a1b2c3"
let cleaned = s.replacing(/\d/, with: "*")
print(cleaned)

let s = "order 1234 done"
let masked = s.replacing(/\d+/, with: "#")
print(masked)

var text = "hello world"
text.replace(/o/, with: "0")
print(text)

let s = "a1 b2 c3"
let result = s.replacing(/\d+/) { match in
    String((Int(match.0) ?? 0) * 10)
}
print(result)

let s = "2024-05"
let out = s.replacing(/(\d+)-(\d+)/) { m in
    "\(m.2)/\(m.1)"
}
print(out)

let csv = "a,b;c,d"
let parts = csv.split(separator: /[,;]/)
print(parts)

let line = "the   quick  brown"
let words = line.split(separator: /\s+/)
print(words.count)
print(words)

let s = "a-b-c-d"
let parts = s.split(separator: /-/, maxSplits: 1)
print(parts)

let raw = "  one,, two ,,three "
let cleaned = raw.replacing(/,+/, with: ",")
let items = cleaned.split(separator: ",").map { $0.trimmingCharacters(in: .whitespaces) }
print(items)

let s = "cat hat bat"
print(s.replacing(/[ch]at/, with: "X"))